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High-solids alkyds resins with improved properties based on styrene allyl alcohol (SAA) resinous polyols / Daniel B. Pourreau in COATINGS TECH, Vol. 1, N° 2 (02/2004)
[article]
Titre : High-solids alkyds resins with improved properties based on styrene allyl alcohol (SAA) resinous polyols Type de document : texte imprimé Auteurs : Daniel B. Pourreau, Auteur ; Scott E. Smyth, Auteur Année de publication : 2004 Article en page(s) : p. 40-47 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Alcool styrène allylique
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Polyalkydes
Polyols
Réduction des composés organiques volatils
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Stringent VOC content rules on Architectural and Industrial Maintenance (AIM) coatings have recently been enacted by federal, regional, and state regulatory agencies. These new rules effectively ban the use of low-solids solventborne alkyd resins, despite their excellent properties, ease of use, and low cost. In response to these new regulations, alkyd producers have been developing higher solids and waterborne alkyds, but these new resins do not perform as well and are more costly than the higher VOC versions. High solids alkyd resins typically have lower molecular weights, which can increase their drying times and reduce their durability. Waterborne alkyds are usually more expensive, despite having lower solids contents. Their dry time is also affected by temperature and humidity and their storage stability is usually lower than solution alkyds. These properties make waterborne alkyds less attractive to contractors who require paints with fast dry times and high coverage and hiding power for maximum productivity. This paper describes the use of commercial resinous polyols to produce alkyd resins with lower solvent demand, plus improved dry times, humidity and UV resistance compared to conventional medium- and long-oil alkyds. Partial replacement of pentaerythritol with styrene allyl alcohol (SAA) resinous polyols in standard alkyd resin syntheses results in a marked decrease in the resin polydispersities but little change in the number average molecular weights. Tire SAA polyol can be added to the process as a solid or a liquid, oil-modified polyol. The alkyd resin with the best overall properties was obtained by replacing a portion of the pentaerythritol, soybean oil, and phthalic anhydride with an SAA-modified soy polyol. Note de contenu : - INTRODUCTION : Styrene allyl alcohol copolymers use in alkyds
- EXPERIMENTAL : Raw materials - Preparation of SAA oleates - Examples preparation of SAA alkyds - Preparation of pigmented alkyds coatings
- RESULTS AND DSICUSSION : Long-oil alkyd resin composition, molecular weight, and polydispersity - SAA oleates - Long-oil alkyd coating properties
- Table 1 : National, regional, and state VOC content rules for major architectural and industrial maintenance coating categories
- Table 2 : Effect of low-VOC alkyd strategies on coating performance
- Table 3 : Properties of commercial styrene allyl alcohol co-polymers
- Table 4 : Low-viscosity long-oil alkyds based on SAA polyols
- Table 5 : Composition and physical properties of SAA-100 oleatesEn ligne : https://drive.google.com/file/d/1NY0K6-uuc77TYku-i9lL_S9hFR3Gt_Bd/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5558
in COATINGS TECH > Vol. 1, N° 2 (02/2004) . - p. 40-47[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 000572 - Périodique Bibliothèque principale Documentaires Disponible High-solids coatings using benzylanilinium sulfonates / T. Morimoto in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 66, N° 833 (06/1994)
[article]
Titre : High-solids coatings using benzylanilinium sulfonates Type de document : texte imprimé Auteurs : T. Morimoto, Auteur ; Shinji Nakano, Auteur Année de publication : 1994 Article en page(s) : p. 75-82 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Ammonium
Aniline
Cations
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MélamineLa mélamine, de nom chimique 1,3,5-triazine-2,4,6-triamine, est parfois dénommée cyanuramide ou cyanurotriamine. Sa formule brute est C3H6N6.
Les "résines mélamine-formaldéhyde" ou "mélamine-formol" (sigle MF) sont appelées "mélamine" dans le langage courant. Elles font partie de la famille des aminoplastes qui regroupe des résines thermodurcissables aminées, issues d'un comonomère tel l'urée ou la mélamine, parfois le thiocarbamide, le cyanamide hydrogène ou le dicyandiamide ; le second comonomère étant le formaldéhyde.
Réticulants
Revêtements:Peinture
Stabilité au stockageIndex. décimale : 667.9 Revêtements et enduits Résumé : Benzylanilinium sulfonates (1n) were synthesized by reacting benzylchloride with N,N-dimethylaniline, followed by the exchange of Cl- with RSO3-. Benzylanilinium sulfonates reacted with H2O, releasing sulfonic acid only at temperatures greater than 75°C, although this temperature varied according to the p-substituents on the 1n benzyl group. Clear coating solutions, consisting of an acrylic polyol, hexamethoxymethylmelamine (HMMM), and 1n, gave cured films over 125°C. Note de contenu : - EXPERIMENTAL : Synthesis of 1n - Synthesis of amine blocked p-TSA (2n) - Estimation of 1n unblocking temperatures - Synthesis of acrylic polyol - Formulation of clear coating solutions - Measurement of pH of the aqueous solutions - Evaluation of storage stability - Evaluation of crosslinking reaction
- RESULTS AND DISCUSSION : Synthesis of benzylanilinium sulfonates (1n) - Reaction of 1d with H2O - Estimation of unblocking temperatures of 1n - Properties of coating solutions - Effect of 1n on crosslinking reaction - Effect of unblocking temperatures of 1n on crosslinking reaction - Storage stability of clear coating solutions - Application of benzylanilinium sulfonates to short-time curable coatingsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18644
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 66, N° 833 (06/1994) . - p. 75-82[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003467 - Périodique Bibliothèque principale Documentaires Disponible 003480 - Périodique Bibliothèque principale Documentaires Exclu du prêt High-Solids coatings using benzylanilinium sulfonates-II a,a-dimethylbenzylpyridinium p-toluenesulfonate, an effective blocked sulfonic acid / S. Nakano in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 859 (08/1996)
[article]
Titre : High-Solids coatings using benzylanilinium sulfonates-II a,a-dimethylbenzylpyridinium p-toluenesulfonate, an effective blocked sulfonic acid Type de document : texte imprimé Auteurs : S. Nakano, Auteur ; T. Morimoto, Auteur ; T. Endo, Auteur Année de publication : 1996 Article en page(s) : p. 83-90 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Ammoniums quaternaires -- Composés
Benzène -- Dérivés
Catalyseurs
Haut extrait sec
MélamineLa mélamine, de nom chimique 1,3,5-triazine-2,4,6-triamine, est parfois dénommée cyanuramide ou cyanurotriamine. Sa formule brute est C3H6N6.
Les "résines mélamine-formaldéhyde" ou "mélamine-formol" (sigle MF) sont appelées "mélamine" dans le langage courant. Elles font partie de la famille des aminoplastes qui regroupe des résines thermodurcissables aminées, issues d'un comonomère tel l'urée ou la mélamine, parfois le thiocarbamide, le cyanamide hydrogène ou le dicyandiamide ; le second comonomère étant le formaldéhyde.
Réticulation (polymérisation)
Stabilité au stockage
SulfonatesIndex. décimale : 667.9 Revêtements et enduits Résumé : α,α-Dimethylbenzylpyridinium ρ-toluenesulfonate (1), a new class of blocked sulfonic acids, was synthesized in good yield and some properties of 1 were compared with those of N-(ρ-methoxybenzyl)-N,N-dimethylanilinium ρ-toluenesulfonate (2), an effective blocked sulfonic acid. 1H-NMR analysis showed that 1 and 2 were able to release the corresponding amine blocked ρ-toluenesulfonic acid during the reaction with H2O and that the unblocking temperatures were 80°C and 75°C, respectively. Consequently, each aqueous solution turned acidic from neutral around 80°C. Furthermore, the hydrolysis properties of 1 and 2 were estimated by measuring the rate of hydrolysis for 1 and 2. It was found that the 1 activation energy (Ea) was higher than the 2 Ea during hydrolysis. Consequently, 1 showed better thermal latency than 2. Note de contenu : - EXPERIMENTAL : Synthesis of pyridinium SbF6 (5) - Synthesis of a,a-dimethylbenzylpyridinium SbF6 (1) - Measurement of pH of the aqueous solutions - Estimation of rate of hydrolysis - Estimation of unblocking temperatures - Synthesis of the acrylic polyol - Formulation of clear coating solutions - Evaluation of crosslinking reaction - Evaluation of storage stability
- RESULTS AND DISCUSSION : Synthesis of benzylpyridinium salts (1) - Synthesis of benzylanilinium sulfonates (2) - Temperature dependency of pH for aqueous solution containing catalysts - Stability of catalysts in aqueous solution - Rate of hydrolysis of catalysts - Unblocking reaction of catalysts - Properties of coating solutions - Crosslinking reaction of coating solutions - Storage stability of coating solutionsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18439
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 68, N° 859 (08/1996) . - p. 83-90[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003517 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : High solids enhancements : Additive optimises both colour stability and viscosity in 2K systems Type de document : texte imprimé Auteurs : Kirstin Schulz, Auteur Année de publication : 2015 Article en page(s) : p. 38-40 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents dispersants (chimie)
Brillance (optique)
Couleurs -- Stabilité
Essais (technologie)
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Matières premières
Revêtements -- Additifs:Peinture -- Additifs
Revêtements bi-composant:Peinture bi-composantIndex. décimale : 667.9 Revêtements et enduits Résumé : A new wetting and dispersing additive achieves a stable low viscosity and consistently stable colour in two-pack high solids paints. Raw material inventories can be reduced because it also gives good results in medium solids formulations. Note de contenu : - Key requirements for wetting and dispersing additives
- Performance advantages of the new additive
- Rub-out test confirms colour stability
- Good gloss and physical properties
- Selecting the star structure
- Broad range of applications and benefits summarisedEn ligne : https://drive.google.com/file/d/16wUXdTiTAFEuE8fPuY1XsgVOTMTgnvYR/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24536
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 9 (09/2015) . - p. 38-40[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17431 - Périodique Bibliothèque principale Documentaires Disponible High-solids epoxy systems for protective and marine coatings / Daniel Totev in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 31, N° 2 (02/2014)
[article]
Titre : High-solids epoxy systems for protective and marine coatings Type de document : texte imprimé Auteurs : Daniel Totev, Auteur ; Marcello Rufo, Auteur Année de publication : 2014 Article en page(s) : p. 51-60 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Epoxydes
Etudes comparatives
Formulation (Génie chimique)
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Liants
Marines (peinture)
Revêtement en phase solvant:Peinture en phase solvant
Revêtements antisalissures:Peinture antisalissures
Revêtements protecteursIndex. décimale : 667.9 Revêtements et enduits Résumé : Epoxy systems have a long and successful track record in marine and protective coatings, mainly driven by their excellent barrier properties, corrosion, and chemical resistance.
There is a continuous trend in this industry to move the technology from the so-called conventional paint to high-solids coatings and, more recently, to ultra-high-solids coatings. This change not only brings some technical challenges that need to be addressed by the formulators, but it also brings benefits such as lower VOCs, improved cure under adverse conditions, and the possibility to increase dry film thickness without having issues of solvent entrapment.
This article will review the basics of high-solids epoxy coatings compared to conventional epoxy technologies, and describe the fundamental technical differences.Note de contenu : - Table 1 : Example formulation and properties of conventional and high-solids epoxy coatings
- Table 2 : General properties of conventional solvent-borne epoxy coatings vs. high-solids epoxy coatings
- Table 3 : General benefits and limitations of the different curing agent typesPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21662
in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL) > Vol. 31, N° 2 (02/2014) . - p. 51-60[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16091 - Périodique Bibliothèque principale Documentaires Disponible High-solids nonaqueous dispersion coatings based on crystalline oligoesters / Ganghui Teng in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 66, N° 829 (02/1994)
PermalinkHigh-solids systems based on silicone-epoxy hybrid resins / Chris Howard in SURFACE COATINGS INTERNATIONAL, Vol. 92, 1 (02/2009)
PermalinkHyperbranched polyurethane based high-solid protective coating for marine application / R. Baloji Naik in PAINTINDIA, Vol. LXVIII, N° 12 (12/2018)
PermalinkIn-situ phosphatizing coatings II : a high-solids polyester baking enamel / Tao Yu in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 71, N° 892 (05/1999)
PermalinkPermalinkInfluence of dibasic acids on the properties of modified polyurethane coatings / Syed Haseebuddin in SURFACE COATINGS INTERNATIONAL, Vol. 78, N° 2 (02/1995)
PermalinkInfluence of novel amine adduct on curing of epoxy resins in presence of vinyl acetate / A. V. Rao in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 67, N° 842 (03/1995)
PermalinkInitiators for high-solids polyacrylates resins : selection guidelines and performance review / Ginger G. Myers in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 67, N° 841 (02/1995)
PermalinkLight stabilisers for environmentally friendly coatings / Yung-Chi Yang in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 202, N° 4571 (04/2012)
PermalinkLow viscosity hardeners gives superior aesthetics even at high application temperatures / Sachin Kamble in PAINTINDIA, Vol. LXXI, N° 2 (02/2021)
PermalinkLow VOC topcoats using ultra high solids resins / Gautam Haldankar in COATINGS TECH, Vol. 18, N° 9 (09/2021)
PermalinkMigration of reactable UVAs and HALS in automotive plastic coatings / Philip V. Yannef in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 1, N° 3 (07/2004)
PermalinkN, n-bis (2-hydroxyethyl) fatty amide as novel environmentally friendly crosslinking agent for acid functional acrylic copolymer resin / D. A. Raval in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 70, N° 883 (08/1998)
PermalinkNanosphere latex synthesis using novel eco-friendly surfactants via emulsion polymerization / Afzal M. Awan in COATINGS WORLD, Vol. 24, N° 4 (04/2019)
PermalinkNew advances in rheological performance in high solids marine and protective coatings / Tony Hennessy in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 204, N° 4597 (06/2014)
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